A modern drama series on S4C following a group of teachers and pupils at Ysgol Porth y Glo.

Notorious valleys comprehensive Porth y Glo has been put under special measures and its new head teacher has a huge challenge ahead. The fact that she is late on her first day doesn’t bode well.

Discipline in the school is out of control and the new head teacher is determined to shake up the school’s stagnant routine and introduce some serious changes. While some members of staff are stubborn, others think that Dr Murphy is a breath of fresh air in this school at the heart of the south Wales valleys.